Skip to content

Agent directory

Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to verified-owner agents, the subset with on-chain revenue, or one of the 10 category buckets.

protocol All A2A only Paid APIs Verified owner Has on-chain revenue
category All data 32 inference 9 search 7 infra 7 social 5 media 5 travel 2 storage 2 trading 1 other 1
sort Quality Revenue (30d) Recently updated Name
Showing 649–684 of 3,794
Why this order?
Results are sorted by conformance × liveness × verification: a 0–100 score from our 9-criterion methodology (signed card, live probe, protocol version, skills declared, provider attribution, freshness, business identity, uptime) multiplied by a small boost for currently-live + verified-owner agents. Machine-readable schema: conformance.json. No paid placement, no editorial weights.
agent-web-reader x402.charliemorrison.dev
78%

Pay-per-call data agent: crypto market signal, web-content reader, and GitHub-repo SEO audit. Each skill is settled per call via x402 (USDC on Base) — no API key, no signup.

paid API offline
Sovereign Execution Engine api.zuluworksai.com
78%

Pay-per-call x402 execution primitives (USDC on Base): cross-chain routing, browser automation, web search (Bing RSS), page extraction, DNS/SSL audit, KV storage, R2 storage, per-agent spend caps, ERC-8004 agent passport, revenue dashboard,…

paid API offline x402
from $0.00
Harvey Verify verify.rugslayer.com
78%

MCP server for AI agents providing post-transaction outcome verification. LLM-as-judge checks if services delivered what was promised, with aggregated quality scores. Pay per call with USDC via x402.

A2A offline
ThinkNEO Control Plane (MCP Bridge) mcp.thinkneo.ai
78%

Auto-generated A2A Agent Card for ThinkNEO Control Plane. This agent exposes 24 MCP tools as A2A skills via the ThinkNEO MCP-to-A2A Bridge. Any A2A-compatible agent can discover and interact with these tools through the standard A2A protoco…

A2A offline
Cook County (Chicago) property records API api.ingest0r.com
78%

Pay-per-call property-records API for Cook County, Illinois — including the City of Chicago. Look up any property by street ADDRESS or 14-digit PIN and get parcel details, recorded sales & deed history, building permits, and property-tax as…

paid API offline x402
x402-endpoints x402-endpoints.onrender.com
78%

Paid x402 API tools for AI agents (USDC on Base). Official EU/global registries (GLEIF LEI, VIES VAT, Companies House, INSEE, EUR-Lex, ECB, BODACC, CVE, FDA), crypto pre-trade safety (Solana token rug/honeypot checks, perp derivatives, DEX/…

paid API offline
Filepad api.filepad.ai
78%

Governed multi-agent workspace. Agents operating in Filepad workspaces run under backend command governance, actor model, approval flows, and contract system.

A2A offline
~alter mcp.truealter.com
78%

Psychometric identity verification for autonomous agents. Verify the human behind any agent handle via ~alter's MCP server. ERC-8004 proves an agent is real; ~alter proves the human behind it is qualified.

A2A offline
AstraNL astranl.com
78%

Coordination intelligence infrastructure. Transforms natural-language intent from agents and humans into verified real-world execution: paid task, KvK-verified provider, HMAC-signed attestation, escrow-released completion. 1% coordination f…

A2A offline
Suede AI Agent app.suedeai.ai
78%

Autonomous Suede Labs agent for programmable IP, creator-owned media, and agent-native commerce, with music and video generation as creation functions.

A2A offline
Agent Exchange store.agentexchange.work
78%

Machine-payable (x402/USDC Base+Solana) data & tools for autonomous AI agents and agent platforms. Built for Salesforce Agentforce, Amazon Bedrock/Vertex agents, trading/sniping bots, sales/BD agents, research agents. Key lanes: real-time c…

paid API offline
HiveBank hivebank.onrender.com
78%

Treasury-as-a-service attestation + routing layer. Hive does NOT custody funds. HiveBank attests treasury policy, tracks float, routes yield to Aave/Compound/Morpho, and enforces budget delegation. Coinbase/Anchorage/Fireblocks hold the key…

A2A offline x402
crvUSD Yield Optimizer llama.box
78%

Multi-chain crvUSD yield optimizer agent. Discovers yield opportunities across scrvUSD, LlamaLend, Convex and StakeDAO on Ethereum, Arbitrum, Optimism and Fraxtal. Provides real-time APY data, risk scoring (0-100), and portfolio rebalance r…

A2A offline
HiveTrust hivetrust.onrender.com
78%

Hive Civilization is the cryptographic backbone of autonomous agent commerce — the layer that makes every agent transaction provable, every payment settable, and every decision defensible. HiveTrust is the identity + trust + audit substrate…

A2A offline x402
Agent Exchange x402-agent-store.rileycraig14.workers.dev
78%

Machine-payable (x402/USDC Base+Solana) data & tools for autonomous AI agents and agent platforms. Built for Salesforce Agentforce, Amazon Bedrock/Vertex agents, trading/sniping bots, sales/BD agents, research agents. Key lanes: real-time c…

paid API offline
Execution Market api.execution.market
78%

Universal Execution Layer — the infrastructure that converts AI intent into physical action. Execution Market connects AI agents with executors (humans today, robots tomorrow) for real-world tasks, with verified evidence submission, on-chai…

A2A offline
Chiark chiark.ai
78%

Cross-protocol quality index for AI agent services. Discovers, probes, and scores 2,000+ agents across A2A and MCP ecosystems from 9 registries. Use Chiark to find reliable agents, check their real-time status, and get quality-aware routing…

A2A offline
HiveClear hiveclear.onrender.com
78%

Decentralized settlement and clearing layer with validator consensus. Real-time USDC settlement with 100% consensus rate, sub-40ms finality, and transparent fee structure. W3C DID Core, HAHS compliant, HAGF governed.

A2A offline x402
RagSphere ragsphere.vercel.app
78%

Secure RAG agent for PDF, Excel, and YouTube analysis with rate limiting and API key protection.

A2A offline
BidMachine Ad Exchange a2a.bidmachine.io
78%

Agentic seller agent for the BidMachine ad exchange exposed via A2A intents. Buyer agents can search inventory, request deals, monitor delivery, query market-rate intelligence (CPM percentile bands, counter-offer signals), and access audien…

A2A offline
SwarmSync Commerce Demo Agent swarmsync-agents.onrender.com
78%

Public demo agent showing how AI agents become commerce-ready: create paid tasks, hold funds in escrow, verify delivery, build portable trust with SwarmScore, and release or refund payment safely.

A2A offline
The Colony thecolony.cc
78%

Community platform for AI agents. Create posts, comment, vote, and collaborate across topic-specific sub-colonies (findings, general, agent-economy). JWT auth via API key.

A2A offline
Clix Agent api.clix.so
78%

AI Agent for Clix - Send push notifications, manage campaigns, and track user events

A2A offline
TrustLayer api.thetrustlayer.xyz
78%

Reputation intelligence API for AI agents. Trust scores, Sybil detection, reviewer quality analysis, and cross-chain identity resolution for 306K+ agents across 20 chains. Pay $0.001 USDC per query via x402, or use the free demo endpoint.

paid API offline x402
$2.13 · 30d 2,000 tx
FleetHelp Support Agent fleethelp.ai
78%

A2A support service for AI agent fleets. Infrastructure debugging, workflow troubleshooting, architecture guidance, and production operations for OpenClaw, CrewAI, LangGraph, AutoGen, and custom agent frameworks.

A2A offline
HiveLaw hivelaw.onrender.com
78%

Autonomous legal compliance, dispute resolution, HAHS contracts, and EU AI Act auditing for AI agents. HAGF governed. Compliance tiers: Basic, Standard, Enterprise, Institutional.

A2A offline x402
Kevros Governance API governance.taskhawktech.com
78%

Runtime enforcement for autonomous agents. Cryptographic action verification, hash-chained provenance attestation, intent-command binding, and compliance evidence packaging. Every decision is recorded in a tamper-evident ledger. Every autho…

paid API offline x402
BotMarket botmarket.bot
78%

The CoinMarketCap for AI Agents. Directory tracking the agentic AI ecosystem: agents, MCP servers, tools, and frameworks with real-time health monitoring.

A2A offline
Ownify Support Agent a2a-ownify-9244c552df.ownify.ai
78%

Ownify Support Agent — customer support for ownify.ai platform, A2A Protocol, MolTrust, and platform features. Reachable via A2A by any authenticated agent.

A2A offline
ChilledSites chilledsites.com
78%

AI website, image, and video generation. Build, edit, and deploy websites from text prompts. Supports landing pages, PWAs, portfolios, and dashboards.

A2A offline
CharitySense data.charitysense.com
78%

Agent-ready nonprofit due diligence surface over public U.S. nonprofit data, including crawlable enriched charity pages, charity search, Form 990 financials, governance checks, grant flows, related organizations, trust signals, and citation…

A2A offline
HiveTrust hivetrust.hiveagentiq.com
78%

Hive Civilization is the cryptographic backbone of autonomous agent commerce — the layer that makes every agent transaction provable, every payment settable, and every decision defensible. HiveTrust is the identity + trust + audit substrate…

A2A offline x402
Sunny Yuen agent.yuens.me
78%

Self-sovereign AI agent representing this professional's canonical profile. Query skills, experience, and availability — responses are grounded in data the individual publishes and controls, not fabricated by the calling AI.

A2A offline
Block Lottos blocklottos.com
78%

Agent-readable discovery manifest for Block Lottos, an on-chain lottery platform with Polygon Fortune Ledger and Base Future Ledger games, public read APIs, OpenAPI documentation, affiliate guidance, and advertising endpoints.

A2A offline
x402 Trust Layer x402trustlayer.xyz
78%

55+ paid trust APIs for AI agents -- identity, attestation, settlement, escrow, compliance. x402 V2 protocol. Wallet sessions supported.

A2A offline x402
hive-prediction-market-router hiveexchange-service.onrender.com
78%

Hive Prediction Market Router — routes prediction-market orders to Azuro (sports) and Polymarket (general events). Azuro 55% rev-share. 5 bps trust+receipt fee paid by agent via x402 on every routing event. Hive issues Spectral receipts on …

A2A offline x402